674
FZNT01 KWBC 200414
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
0430 UTC WED AUG 20 2025

CCODE/2:31:04:11:00/AOE+AOW/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).

FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH
ATLANTIC ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.PHP
(ALL LOWERCASE).

FOR ANY TROPICAL CYCLONE INFORMATION BEYOND 48 HOURS REFERENCE
THE ASSOCIATED NWS TROPICAL CYCLONE FORECAST/ADVISORY (TCM).

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

ALL FORECASTS VALID OVER ICE FREE FORECAST WATERS

SYNOPSIS VALID 0000 UTC AUG 20.
24 HOUR FORECAST VALID 0000 UTC AUG 21.
48 HOUR FORECAST VALID 0000 UTC AUG 22.

.WARNINGS.

...HURRICANE WARNING...
.SEE TAFB PORTION BELOW FOR MORE INFORMATION ON ERIN.
.FROM 31N TO 34N BETWEEN 77W AND 68W WINDS 20 TO 33 KT. SEAS TO 4
M.
.24 HOUR FORECAST HURRICANE ERIN NEAR 31.6N 73.4W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS
WITHIN 180 NM W SEMICIRCLE...220 NM NE QUADRANT AND 230 NM SE
QUADRANT. SEAS 4 M OR GREATER WITHIN 360 NM NE...300 NM SE...360
NM SW...AND 330 NM NW QUADRANTS WITH SEAS TO 17.5 M. ELSEWHERE
FROM 31N TO 50N BETWEEN 81W AND 64W WINDS 20 TO 33 KT. SEAS 2.5
TO 4 M.
.48 HOUR FORECAST HURRICANE ERIN NEAR 35.9N 69.8W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS
WITHIN 240 NM NE QUADRANT...270 NM SE QUADRANT...220 NM SW
QUADRANT...AND 210 NM NW QUADRANT. SEAS 4 M OR GREATER
WITHIN 300 NM NE...420 NM SE...480 NM SW...AND 360 NM NW
QUADRANTS WITH SEAS TO 17.5 M. ELSEWHERE FROM 31N TO 43N BETWEEN
60W AND 78W WINDS 20 TO 33 KT. SEAS 2.5 TO 4 M.

.FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND
INTENSITY.

...GALE WARNING...
.LOW 47N47W 1002 MB MOVING NE 15 KT.360 NM S SEMICIRCLE...AND
FROM 40N TO 60N BETWEEN 50W AND 60W WINDS 25 TO 35 KT. SEAS 2.5
TO 4 M.
.24 HOUR FORECAST LOW 52N43W 999 MB. FROM 55N TO 60N E OF
60W...AND WITHIN 480 NM SW SEMICIRCLE WINDS 25 TO 40 KT. SEAS 2.5
TO 5 M.
.48 HOUR FORECAST LOW 53N44W 997 MB. WITHIN 480 NM S...AND 540 NM
W SEMICIRCLES...AND WITHIN 240 NM N OF A LINE FROM 56N44W TO
60N35W WINDS 25 TO 35 KT. SEAS 2.5 TO 4.5 M.

...GALE WARNING...
.FROM 56N TO 50N BETWEEN 60W AND 40W AREA OF E WINDS 25 TO 35 KT.
SEAS TO 3.5 M.
.24 HOUR FORECAST CONDITIONS ABSORBED BY LOW 52N43W DESCRIBED
ABOVE.

.SYNOPSIS AND FORECAST.

.LOW E OF AREA NEAR 51N32W 999 MB MOVING NE 15 KT. FROM 46N TO
58N E OF 40W WINDS 20 TO 30 KT. SEAS TO 3.5 M.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS WELL E OF AREA.

.LOW 33N48W 1012 MB MOVING NE 20 KT. WITHIN 240 NM SE QUADRANT
WINDS TO 25 KT. SEAS LESS THAN 2.5 M.
.24 HOUR FORECAST LOW 35N39W 1012 MB. WITHIN 240 NM SE QUADRANT
WINDS 20 TO 30 KT. SEAS TO 2.5 M.
.48 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS MOVED E OF AREA.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM E OF A LINE FROM
48N35W TO 55N60W...AND N OF 63N BETWEEN 53W AND 57W.
.24 HOUR FORECAST DENSE FOG FROM 54N TO 58N BETWEEN 35W AND
54W...AND N OF 63N BETWEEN 52W AND 54W.
.48 HOUR FORECAST CONDITIONS IMPROVED.

.FORECASTER BYRD. OCEAN PREDICTION CENTER.

NWS NATIONAL HURRICANE CENTER MIAMI FL

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF AMERICA

SYNOPSIS VALID 0000 UTC WED AUG 20.
24 HOUR FORECAST VALID 0000 UTC THU AUG 21.
48 HOUR FORECAST VALID 0000 UTC FRI AUG 22.

.WARNINGS.

...ATLC HURRICANE WARNING...
.HURRICANE ERIN NEAR 27.7N 73.0W 959 MB AT 0300 UTC AUG 20
MOVING NNW OR 340 DEG AT 10 KT. MAXIMUM SUSTAINED WINDS 85 KT
GUSTS 105 KT. TROPICAL STORM FORCE WINDS WITHIN 180 NM NE
QUADRANT...200 NM SE QUADRANT...150 NM SW QUADRANT...AND 160 NM
NW QUADRANT. SEAS 4 M OR GREATER WITHIN 450 NM NE
QUADRANT...330 NM SE QUADRANT...180 NM SW QUADRANT...AND 420 NM
NW QUADRANT WITH SEAS TO 13.5 M. ELSEWHERE WITHIN 31N70W TO
29N74W TO 31N77W TO 25N77W TO 22N73W TO 26N66W TO
31N70W...INCLUDING
ATLC EXPOSURES...WINDS 20 TO 33 KT. SEAS 3.5 TO 6 M. REMAINDER
OF AREA WITHIN 31N63W TO 31N81W TO 30N81W TO 23N74W TO 22N70W TO
27N64W TO 31N63W...INCLUDING ATLC EXPOSURES... WINDS 20 KT OR
LESS. SEAS 2.5 TO 3 M IN MIXED SWELL.
.24 HOUR FORECAST HURRICANE ERIN NEAR 31.6N 73.4W. MAXIMUM
SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM FORCE WINDS
WITHIN 180 NM W SEMICIRCLE...220 NM NE QUADRANT AND 230 NM SE
QUADRANT. SEAS 4 M OR GREATER WITHIN 360 NM NE QUADRANT...300 NM
SE QUADRANT...360 NM SW QUADRANT...AND 330 NM NW QUADRANT WITH
SEAS TO 14 M. ELSEWHERE WITHIN 31N66W TO 31N80W TO 27N78W TO
26N70W TO 28N67W TO 31N66W WINDS 20 TO 33 KT. SEAS 4 TO 5.5 M.
REMAINDER OF AREA WITHIN 31N64W TO 31N81W TO 27N80W TO 24N74W TO
24N71W TO 25N68W TO 31N64W...INCLUDING ATLC EXPOSURES.. WINDS 20
KT OR LESS. SEAS 2.5 TO 3 M IN MIXED SWELL.
.48 HOUR FORECAST HURRICANE ERIN WELL N OF AREA NEAR 35.9N
69.8W. MAXIMUM SUSTAINED WINDS 95 KT GUSTS 115 KT. TROPICAL STORM
FORCE WINDS WITHIN 240 NM NE QUADRANT...270 NM SE QUADRANT...220
NM SW QUADRANT...AND 210 NM NW QUADRANT. OVER FORECAST WATERS S
OF 31N WITHIN 31N64W TO 31N70W TO 31N75W TO 29N72W TO 29N67W TO
31N64W S TO SW WINDS 25 TO 30 KT. SEAS 4 TO 5.5 M. ELSEWHERE
WITHIN 31N60W TO 29N72W TO 31N81W TO 29N80W TO 26N74W TO 26N68W
TO 31N60W SW TO W WINDS 20 TO 25 KT. SEAS 2.5 TO 3.5 M.

FORECAST WINDS IN AND NEAR ACTIVE TROPICAL CYCLONES SHOULD BE
USED WITH CAUTION DUE TO UNCERTAINTY IN FORECAST TRACK...SIZE
AND INTENSITY.

.SYNOPSIS AND FORECAST.

.CARIBBEAN 24 HOUR FORECAST WITHIN 14N69W TO 13N74W TO 11N74W TO
12N71W TO 11N71W TO 12N68W TO 14N69W...INCLUDING THE GULF OF
VENEZUELA...NE TO E WINDS 20 TO 25 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST LITTLE CHANGE.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 2.5 M.


.FORECASTER AGUIRRE. NATIONAL HURRICANE CENTER.

$$